Question
1-What is an information System? What are some of the ways information systems are changing our lives?
2-How is data different from information? Information from Knowledge?
3-Describe the various type of information
Question
What is correlation and when would a researcher be interested in determining the correlation among two or more variables?
Question
There is always a risk (or chance, or probability) associated in making Type I error. What is this risk called and how it is indicated in a diagram of the standard normal curve?
A significance test is used to prevent a machine from under filling or overfilling quart bottles. On the basis of a sample, the null hypothesis is rejected and the machine is shut down for inspection. A thorough examination reveals there is nothing wrong with the filling machine. From a statistical standpoint, was there a “type” error made? If yes, which type? Explain.